*** 1 Progress [(O(1),O(1))] *** Considered Problem: Strict DP Rules: Strict TRS Rules: c(b(a(),a()),b(y,z),x) -> b(a(),b(z,z)) f(b(b(x,f(y)),z)) -> c(z,x,f(b(b(f(a()),y),y))) f(c(c(a(),y,a()),b(x,z),a())) -> b(y,f(c(f(a()),z,z))) Weak DP Rules: Weak TRS Rules: Signature: {c/3,f/1} / {a/0,b/2} Obligation: Innermost basic terms: {c,f}/{a,b} Applied Processor: DependencyPairs {dpKind_ = DT} Proof: We add the following dependency tuples: Strict DPs c#(b(a(),a()),b(y,z),x) -> c_1() f#(b(b(x,f(y)),z)) -> c_2(c#(z,x,f(b(b(f(a()),y),y))),f#(b(b(f(a()),y),y)),f#(a())) f#(c(c(a(),y,a()),b(x,z),a())) -> c_3(f#(c(f(a()),z,z)),c#(f(a()),z,z),f#(a())) Weak DPs and mark the set of starting terms. *** 1.1 Progress [(O(1),O(1))] *** Considered Problem: Strict DP Rules: c#(b(a(),a()),b(y,z),x) -> c_1() f#(b(b(x,f(y)),z)) -> c_2(c#(z,x,f(b(b(f(a()),y),y))),f#(b(b(f(a()),y),y)),f#(a())) f#(c(c(a(),y,a()),b(x,z),a())) -> c_3(f#(c(f(a()),z,z)),c#(f(a()),z,z),f#(a())) Strict TRS Rules: Weak DP Rules: Weak TRS Rules: c(b(a(),a()),b(y,z),x) -> b(a(),b(z,z)) f(b(b(x,f(y)),z)) -> c(z,x,f(b(b(f(a()),y),y))) f(c(c(a(),y,a()),b(x,z),a())) -> b(y,f(c(f(a()),z,z))) Signature: {c/3,f/1,c#/3,f#/1} / {a/0,b/2,c_1/0,c_2/3,c_3/3} Obligation: Innermost basic terms: {c#,f#}/{a,b} Applied Processor: UsableRules Proof: We replace rewrite rules by usable rules: c#(b(a(),a()),b(y,z),x) -> c_1() *** 1.1.1 Progress [(O(1),O(1))] *** Considered Problem: Strict DP Rules: c#(b(a(),a()),b(y,z),x) -> c_1() Strict TRS Rules: Weak DP Rules: Weak TRS Rules: Signature: {c/3,f/1,c#/3,f#/1} / {a/0,b/2,c_1/0,c_2/3,c_3/3} Obligation: Innermost basic terms: {c#,f#}/{a,b} Applied Processor: Trivial Proof: Consider the dependency graph 1:S:c#(b(a(),a()),b(y,z),x) -> c_1() The dependency graph contains no loops, we remove all dependency pairs. *** 1.1.1.1 Progress [(O(1),O(1))] *** Considered Problem: Strict DP Rules: Strict TRS Rules: Weak DP Rules: Weak TRS Rules: Signature: {c/3,f/1,c#/3,f#/1} / {a/0,b/2,c_1/0,c_2/3,c_3/3} Obligation: Innermost basic terms: {c#,f#}/{a,b} Applied Processor: EmptyProcessor Proof: The problem is already closed. The intended complexity is O(1).